> This patch aims to improve the performance of MethodTypeDesc in general, as > it is currently a performance bottleneck in the Classfile API. A previous > revision changed the parameter storage from an array to a list; this is > dropped now. Sorry for the force push. > > > Benchmark > (descString) Mode Cnt Score Error Units > MethodTypeDescFactories.descriptorString > (Ljava/lang/Object;Ljava/lang/String;)I avgt 6 27.778 ± 0.573 ns/op > MethodTypeDescFactories.descriptorString > ()V avgt 6 13.343 ± 0.235 ns/op > MethodTypeDescFactories.descriptorString > ([IJLjava/lang/String;Z)Ljava/util/List; avgt 6 40.828 ± 0.448 ns/op > MethodTypeDescFactories.descriptorString > ()[Ljava/lang/String; avgt 6 14.754 ± 0.162 ns/op > MethodTypeDescFactories.ofArray > (Ljava/lang/Object;Ljava/lang/String;)I avgt 6 8.616 ± 0.132 ns/op > MethodTypeDescFactories.ofArray > ()V avgt 6 2.146 ± 0.293 ns/op > MethodTypeDescFactories.ofArray > ([IJLjava/lang/String;Z)Ljava/util/List; avgt 6 14.595 ± 0.235 ns/op > MethodTypeDescFactories.ofArray > ()[Ljava/lang/String; avgt 6 2.064 ± 0.085 ns/op > MethodTypeDescFactories.ofDescriptor > (Ljava/lang/Object;Ljava/lang/String;)I avgt 6 97.077 ± 2.482 ns/op > MethodTypeDescFactories.ofDescriptor > ()V avgt 6 13.563 ± 0.111 ns/op > MethodTypeDescFactories.ofDescriptor > ([IJLjava/lang/String;Z)Ljava/util/List; avgt 6 130.543 ± 2.847 ns/op > MethodTypeDescFactories.ofDescriptor > ()[Ljava/lang/String; avgt 6 35.286 ± 0.260 ns/op > MethodTypeDescFactories.ofList > (Ljava/lang/Object;Ljava/lang/String;)I avgt 6 4.156 ± 0.258 ns/op > MethodTypeDescFactories.ofList > ()V avgt 6 2.192 ± 0.063 ns/op > MethodTypeDescFactories.ofList > ([IJLjava/lang/String;Z)Ljava/util/List; avgt 6 41.002 ± 0.235 ns/op > MethodTypeDescFactories.ofList > ()[Ljava/lang/String; avgt 6 2.200 ± 0.041 ns/op
Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits: - Forgot to upload latest micro - general optimizations to MTD, no longer change backing storage ------------- Changes: https://git.openjdk.org/jdk/pull/13186/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13186&range=04 Stats: 305 lines in 7 files changed: 201 ins; 42 del; 62 mod Patch: https://git.openjdk.org/jdk/pull/13186.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13186/head:pull/13186 PR: https://git.openjdk.org/jdk/pull/13186
